Global Patent Index - EP 0078428 B1

EP 0078428 B1 19850410 - METHOD OF MANUFACTURING SINTERED OXIDIC NUCLEAR FUEL BODIES

Title (en)

METHOD OF MANUFACTURING SINTERED OXIDIC NUCLEAR FUEL BODIES

Publication

EP 0078428 B1 19850410 (DE)

Application

EP 82109522 A 19821014

Priority

DE 3142447 A 19811026

Abstract (en)

[origin: ES8402968A1] Method for the manufacture of oxidic nuclear fuel bodies by a heat treatment of blanks obtained from UO2 starting power or a mixture of UO2 and PuO2 starting powder at a treatment temperature in the range of 1000 DEG C. to 1400 DEG initially in a gas atmosphere with oxidizing action and subsequently in a gas atmosphere with reducing action. The oxygen potential of the gas atmosphere with oxidizing action is kept in a range in which a crystallographically demonstrable U4O9 or (U, Pu)4O9 crystal phase is generated in the blanks during the heating to the treatment temperature in this gas atmosphere with oxidizing action.

IPC 1-7

G21C 3/58; G21C 21/02

IPC 8 full level

G21C 3/62 (2006.01)

CPC (source: EP US)

G21C 3/623 (2013.01 - EP US); Y02E 30/30 (2013.01 - EP US)

Designated contracting state (EPC)

BE FR GB IT SE

DOCDB simple family (publication)

DE 3142447 C1 19830414; BR 8206197 A 19830920; CA 1182994 A 19850226; EP 0078428 A2 19830511; EP 0078428 A3 19830921; EP 0078428 B1 19850410; ES 516804 A0 19840216; ES 8402968 A1 19840216; JP H0471193 B2 19921113; JP S5882189 A 19830517; US 4578229 A 19860325

DOCDB simple family (application)

DE 3142447 A 19811026; BR 8206197 A 19821025; CA 414095 A 19821025; EP 82109522 A 19821014; ES 516804 A 19821025; JP 18732882 A 19821025; US 43630382 A 19821025